#include <iostream>
     using namespace std;

     class Test {
       public :
              static Test & GetInstance()
               {
                     if (obj == NULL)
                       obj = new Test;
                   return obj;
                  }
         private :
                 Test(Test & test){} // Disable Copy Constructor
                 Test & operator =(Test & test){}  // disable the assignment operator
                static Test *obj;
            
      
          };

   int main()
  {
        Test *objTest = Test::GetInstance();
        return 1;
   }